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What is basalt?
Basalt is a type of extrusive igneous rock composed primarily of plagioclase feldspar and large amounts of mafic minerals like pryoxene. (1)
What does basalt contain?
The major minerals present in all basalt are pyroxene plagioclase feldspar. (1)
Basalt is devoid of quartz. (1)
What color is basalt?
Basalt appears black or grayish-black, sometimes with a greenish or reddish crust. (2)
What is made of basalt?
The dark spots on the moon of the Earth(3)
The crust of the ocean floor (crust) of Earth(3)
a huge portion of the Pacific Northwest in USA (3)
Resources
1. https://rockhoundresource.com/basalt/
2. https://sciencing.com/identify-basalt-2155819.html
3. https://youtu.be/hgNmIyKj3T4 @ 0:47
